Calvin and Hobbes by Bill Watterson for April 16, 1987
Book: Mr. Jones lives 50 miles away from you. You both leave home at 5:00 and drive toward each other. Mr. Jones travels at 35 mph, and you drive at 40 mph. At what time will you pass Mr. Jones on the road? Calvin, writing: Given the traffic around here at 5:00, who knows? Calvin: I always catch these trick questions.